Abstract

Varsha Gupta, Vikas Pratap Singh Bhadauria and R. L. Agarwal

Field experiments were conducted on three different Brassica spp. (Brassica juncea, Brassica carinata and Brassica nupus) with three levels of nitrogen (40, 80 and 120 kg of N ha-1 ) and 2 methods of time of potassium application at 80 kg ha-1 ((i) 100% basal and (ii) 50% basal + 50% at the time of 1st irrigation), during Rabi season of 2003 - 2004 and 2004 - 2005 showed that Brassica spp. responded significantly to the application of N and K. Maximum oil yield was observed in case of B. carinata (PBC-9221) and minimum under B. napus. Higher dose of nitrogen 120 kg N ha-1 produced maximum oil yield. Split application of potassium also produced higher oil yield than basal dose of potassium.